package org.lemon.transport.rule.engine.mqtt.model;

import io.netty.handler.codec.mqtt.MqttQoS;
import lombok.Getter;

public final class MqttLastWill {

    @Getter
    private final String topic;
    @Getter
    private final String message;
    @Getter
    private final boolean retain;
    @Getter
    private final MqttQoS qos;

    public MqttLastWill(String topic, String message, boolean retain, MqttQoS qos) {
        if (topic == null) {
            throw new NullPointerException("topic");
        }
        if (message == null) {
            throw new NullPointerException("message");
        }
        if (qos == null) {
            throw new NullPointerException("qos");
        }
        this.topic = topic;
        this.message = message;
        this.retain = retain;
        this.qos = qos;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        MqttLastWill that = (MqttLastWill) o;

        if (retain != that.retain) return false;
        if (!topic.equals(that.topic)) return false;
        if (!message.equals(that.message)) return false;
        return qos == that.qos;

    }

    @Override
    public int hashCode() {
        int result = topic.hashCode();
        result = 31 * result + message.hashCode();
        result = 31 * result + (retain ? 1 : 0);
        result = 31 * result + qos.hashCode();
        return result;
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder("MqttLastWill{");
        sb.append("topic='").append(topic).append('\'');
        sb.append(", message='").append(message).append('\'');
        sb.append(", retain=").append(retain);
        sb.append(", qos=").append(qos.name());
        sb.append('}');
        return sb.toString();
    }
}
